Patient baseline and demographic characteristics
| Characteristics | Routine perioperative BP control | Tight perioperative BP management | ASD |
| n=40 | n=40 | ||
| Age | 68 (10) | 67 (10) | 0.12 |
| Height (cm) | 166 (8) | 165 (8) | 0.06 |
| Weight (kg) | 66 (12) | 71 (16) | 0.28 |
| SBP | 142 (18) | 148 (21) | 0.31 |
| DBP | 80 (10) | 86 (10) | 0.67* |
| Surgery length (hours) | 2.56 (2, 4) | 2.25 (1.7, 2.8) | 0.26 |
| Surgery type | 0.66* | ||
| Abdominal | 23 (58%) | 18 (45%) | |
| Gynaecologic | 0 (0) | 1 (2%) | |
| Neurosurgical | 2 (5%) | 6 (15%) | |
| Orthopaedic | 6 (15%) | 3 (8%) | |
| Thoracic | 7 (18%) | 12 (30%) | |
| Thoracic and abdominal | 1 (2%) | 0 (0) | |
| Urology | 1 (2%) | 0 (0) | |
| Smokers | 8 (20%) | 6 (15%) | 0.13 |
Data are presented as mean (SD), median (Q1, Q3) or n (%) as appropriate.
*ASD >0.44 indicates imbalance.
ASD, absolute standardised difference; BP, blood pressure; DBP, diastolic blood pressure; SBP, systolic blood pressure.